Home / 643,433,731.29-965,522,960.07-269,908,165.58

Finding the Fourth Proportional to 643,433,731.29, 965,522,960.07 and 269,908,165.58

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Solution

The fourth proportional to 643,433,731.29, 965,522,960.07 and 269,908,165.58 is: 405,018,447.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,433,731.29 : 965,522,960.07 = 269,908,165.58 : x
  2. Step 2: Convert to fraction form
    643,433,731.29/965,522,960.07 = 269,908,165.58/x
  3. Step 3: Cross multiply
    643,433,731.29x = 965,522,960.07 × 269,908,165.58
  4. Step 4: Simplify right side
    643,433,731.29x = 260,602,530,973,037,664
  5. Step 5: Solve for x
    x = 260,602,530,973,037,664/643,433,731.29
  6. Step 6: Final answer
    x = 405,018,447.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.